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AIA Document Numbering System

The AIA implemented a new numbering system for contract documents in 2007. The new system organizes AIA documents alphanumerically by series, based on document use or purpose, and by family, based on project type or delivery method.

Under the system, AIA document numbers include the letter of the Series, and three digits representing document Type, project type or Delivery method, and Sequence, plus the year of the Edition. In the following example, AIA Document B101™–2007, Standard Form of Agreement Between Owner and Architect, is a prime owner/architect agreement in the Conventional (A201) family, and is first in a sequence of owner/architect agreements that includes AIA Documents B102™–2007, B103™–2007, B104™–2007, B105™–2007, B106™–2010 and B108™–2009.